Quanta S98J 1U Rackmount Server Case 4 X 3.5 Hotswap Bay w/500W Power Supply 4x Hot-Swappable SATA (I and II) / SAS drive bays Supports up to four 3.5 SATA (I and II) as well as SAS disk drives 1 x Slim CD-ROM bay,1 x FDD bay, 4 x 3.5 " Hot-Swappable drive bays Support EEB (12 x 13), CEB (12x10.5), ATX, Micro ATX motherboard, PCIe x16 Riser Card (included) Power Supply : Acbel 500W Gold 80Plus 1U Power Supply included Dimension (WxHxD, inch) 16.9"x1.7"x27.8" , 1x PCIe Expansion Slot, ROHS